Box-gluing machine



v Nov.. 6 19%. SSS

. R. J. GRUENBERG y Box GLUING MACHINE y Filed May 2,9, 1922 4 Sheets-Sheet 1 j l ,wwwa/a R. J. GRUENBERG BOX GLUING MACHINE Filed May 29 1922 4 Sheets-Sheet 3 @mms3 Nov. 6 R923.

R. J. GRUENBERG BOX GLUING MACHINE Filed May 29, 1922 4 Sheets-Sham'l 4 Peten-ted Nov. 6, i923.

UNET` STATES :RAOUL J. GRUENBERG, OT." SAN FRANCISCO', CALIFORNEA, ASSIGNOR TO THE PAR- .'AFFNE COMPANIES, INC., 0F SAN FRANCSCO, CALIFORNIA, A CORPOR'ATON OF DELAWARE.

BOX-GLUING 'v'IACENE.

Application filed May 29,

To all '1v/0m t may eminem: Y

Be it known that l, RAOUL J. GnUnNnnnG,

citizen of' the United Sta-tes, residing at San Francisco, in the county of San Francisco, State of California, have invented a new and useful BoX-Gluing Machine, of which the following is a specification in such full and clear terms as will enable those skilledl in the art to construct and use the san'ie.

This invention relates to aA machine for gluing the tabs of paper or fibre boa-rd boxes and its object is to produce a machine which is capable of being constructed at very reasonable cost which will enable the user to assemble boxes rapidly and eiliciently, the gluing machine being so arranged as to exert sufficient pressure upon the glued box tabs to insure holding -them properly when once glued.

Another object of the invention is to provide a machine which will be substantially automatic in oper-ation, the operator merely depressing a foot lever which causes the gluing rolls to pass over two of the box tabs after which a presser foot causes the short box tab at the end oit the box to be pushedl into contact with thelirst two tabs with sufficient force to insure securing` them together.

Another object of the invention is to provide a machine which is capable of being adjusted laterally to permit wider or narrower boxes being glued thereby, the gluing rolls and the presser feet being bothmoved toward or away from the center of the machine to thereby equalize the operation on both ofthe-tabs to be glued.

Other objects of the invention will appear as thev description proceeds.

An embodiment of the invention is shown iny thev accompanying drawings in which the same reference numeral isA applied to the same portion throughout, but I am aware that there may be modilications-thereof.

Fig. l is a fron-t elevation of the complete machine.

Fig. 2' is a verticaijl sectional.. view` of the completerin'aeh-ine on the line 2+.2of Figure 1.

Fig, 3v isa view of the-upper portion o the machine showing its appearance from the Sid@ 1922. Serial No. 564,289;

Fig. d is a side elevation of one of' the gluing tab tables sepa-rate from the machine.

Fig. 5 is a iront elevation ot one of the gluing tab tables separate from the machine.

Fig. G is a view of a portion of the foot pedal illustrating its operation with respect to the gluing roller operating link.

Figures 7 and 8 are detail views showing the operation ot' Athe tab folding mechanism.

Fig. 9 is a plan view oi' the upper portion of the machine, the base and 'foot pedal being omitted, and

F ig. l() a view in elevation of the niachine looking from the back, only the upper portion being shown.

The machine has two base plates l' and 2 which are connected to two angle bars 3 and t to form the base of' the machine. rlhe angle bars 3 and 4 support two vertically extending angle bars 5 and (3,.the latter bars being connected to the base bars 3 and l with gusset plates 7 and 8 to give additional strength.

At the upper end the side posts 5 and 6 are connected. together' by an angle bar E). The vertically movable channel bar terms the support iior the two presser tables l() and ll. ln order to give the iframe rigidity two diagonal` braces l2 and 13 are connected to the posts and 6, while the channel bar 9 is movable vertically therein a short distance as will be later explained.

The tab folding table has two projecting ianges lil and l5 the upper oli which has a depending hook 16 to hold it in engagement with the channel bar. rlllhese flanges enable the tab folding table to be held in positionA duringA adjust-ment thereof and bolts 'li' and 'iS operativo through slots i9 and 2() olf` the cha nnel bar afford' the mea-ns for tixing thev tab folding tables in any given poF sition.

The channel bar 9 has angles 2l.. 22 secured thereto at its. ends, which angles are connectedto four links 25. 2e?, 24. loose ly mountedon twoI shafts 25, 25. The chair nel bar 9 when not' raised by theoperator restsV upon two short angle bars 91,v 92 Secured toet-he posts 5 and 6. The sha-tts 25, 26 are journaled in fou-r bearingsy 27, 27', 28, 28 onthetwoposts vafndp. lDepending` 37, V38 in which is journaled a shaft 89. TheV i shaft 39 has'two presser leet40, 4lV mounted thereon, saidy presserV feet being movable longitudinally along the shaft to give any desired adjustment between lthe two vbearings 37, 38. This shaft also hasy an arm 42 mounted thereon which is pivotally connected to a lilik 48 connected pivotally at its other end to an arm 44 on 4the sha'lit 25.

rlheshaiit 25 also has an arm 45 thereon which has a pin for pivotally connecting it to the upper end ot' a link 46, said link being pivotally connected at its lower end at 47 to the foot lever 48. The toot lever 48 is pivotally connected at one end toV a shaft 49 extending between the two angle plates 3 and 4, It also has two links 50, 51 pivotally connected thereto, which links are slottedV at their upper end to receive an arm 52 on the shaft 53. The arm 52 ist carried by va boss on the shaft 53, which boss alsohas an arm 54 thereon pivotally connected by means of a pin 55 to the lower end ot the link The foot lever has a pin 56 'for engaging a hook on the lower end of the rod 57, and said hook is so shaped as to engage a pin 58 on a Yshort post 59, thereby disengaging the rod 57 from the pin 56 when theglue rollers have passed over the end 'tabs'of the boX.

Secured on the trame members 5 and 6 are two cleats 60, 6l in which a horizontally extending bar 62 is vertically movable. This bar is slotted to provide 'for an adjustment of'two upperly extending links'63, 64, which links are connected `at their upper ends to the short end of the glue roller operating arms 65, 66. These arms are journaled onk shafts 5 67, 68 each of which is supported by the bearing's'69, 7 0 formed on the lower part of the tab presser table.

Each tab presser table carries a glue pot: as indicated at 72, 73 andV each glue pot has a. feed rollertherein as indicated at 74, 75. The feed rollers have the small gears 76, 77 thereon in inesh with large `gears 7 8, 79, duL plicates of each other.

The gears 7 8, 79 are journaled on the back of the `gluereceptacle and they each have slotted arm 80 Vpivotally mounted on the.

` Vgear shaft, which slots have vrods 81, 82 eX tending therev into, andy said rods 81, Y 82 are securedat their upper ends to arms 83, 84

on the shaft39., Pawls connect the arms 80 with-.and drive'the wheels78, 7 9 2 Y Atthe upper ends the gluing rollers have two arms 85, 86 `connected thereto to extend in substantiallyy horizontal direction, a shaft- 87 connecting` the arms 65 and arms 65 Y andV carrying a sprin'gfwfS to hold the rollers kdown against; 'the box tab with sutlicient force to press it down when the `gluing rollers are pressed against the saine.v j i Angleplates 9 1', .92"2torni a support -to limit the downward inovemeirtfof'the channel bar and tab supporting table, and they term the support for the glueV receptacles. A spring 98 connected to the link 57 restores the gluing rollers andthe ariiis carrying theiii to their position as shown in Figure l, a stop 94 preventing the link 57 l'roin being drawn too 'liar rearwardly by` the spring.

The operation ot the apparatus is as follows: The operator sits in Yliront oi ythe nurl chine and places the boxes in trontoli the two 'tables l() and l1 with the end tabs all extending upwardly, thereupon the foot' lever 48 is depressed. The first action is to push the two pairs Voli gluing rollers' in-V wardly against the end flaps of the box folding lthem on the top Iof the tables l0 and ll. Then the foot lever has been depressed sut# tciently the'pin 58 will kick it loose. it'rom the pin 56 Vthereby allowing the spring 93 to restore it to the position shown in Fig'. 2.

At the moment of release of the link 57,

the link 46 will cause the presser feet 40,41

to be pushed' against the outer end llap of the yboi; thereby pushing. it over Vthetop ot the two glued end flaps and when the two presser teet have been moved toV a vertical position, the link 3l' will cause the channel har 9 and attached parts'to be raised and bring the tables 10 and ll into contact with the presser feet 40,41 with a toggle joint effect due to the iac't that'the arm 54 and link 31 will be at that moment substantially in line vertically, the slotsI in the link 3l be-v ingy arranged of suchlength as to permit this desired toggle joint effect to give great pres-.

sure upon the boxtabs at that moment.

1 As soonV as the 'toot` pedal 48 is released Y the weight ofthe channel bar 9 and tab supportingtables l() and kll vis sufficient to restore -the apparatus to the position tore:- ceive another box. At the saine time the links 81,82 will cause the gears 78,79 to rotate the glue rollers! 74, 75 a sullicient` number ofjtimes to ilfeed the desired amount of glue to the rollers '89."

Just above each of" theitables l0 and l1 and at the back of them there are two up` Vwai-diy projecting lugs 10, 1l which carry threaded rods as indicated in Figure 2y at;

10a, which rods bear against projecting lugs 45 on the corresponding arms, the object 4being to prevent said arms rominoving too fary back whenthe front tab `'of the'box being forceddown.' Y l v f Y, What l claim is as follows,rbut various.

modifications may be made in the construction shown in the drawings and above partioularly described form, within the pur* view of my invention.

l. A box forming machine comprising a pair of end flap supports, rollers to push two of the side flaps of a box blank over said supports, means to supply said rollers with glue, means to thereafter push the bottom flap over the two glued flaps, and means to press all of the flaps together t'o secure them together.

2. A machine for forming boxes comprising a support for the box end tabs, laterally movable rollers for pushing two of the tabs over said support and for gluing them, swinging arms moving at a right angle to the gluing rollers for pushing one of the tabs over the topof two of the others, and means to bring all of the tabs together under considerable pressure to effect the gluing of the box ends.

3. In a box gluing machine a support for the end tabs of a box, laterally movable a arms carrying gluing rollers for pushing two of the tabs over said support, other arms movable at right angles to the first arm for pushing one tab over the glued tabs, and means to raise said support to push the box end tabs placed thereover into contact with each other for securing them together.

4. A box forming machine comprising a support, means to push two box tabs over said support, arms movable at right angles to the rst mentioned means for pushing one ot the box end tabs over the top of two others, and means to bring the box end tabs together under considerable pressure for securing them together.

5. In a box gluing machine a support, a pair of arms movable toward and away from each other to push two box tabs over the top of said support, means to supply said arms with glue, means to push a short tab of the box over the top of two others, and a foot pedal for raising the support into contact with two of said arms to bring the box end tabs together to be glued.

6. In a box gluing machine supports for the end tabs of a box, laterally movable arms to push the side tabs of a box toward each other and to place glue thereon, and means to push the bottom end tab of a box over the other two end tabs and press the tabs t-ogether to complete the box.

7. In a box gluing machine a support for the end tabs of a box, laterally movable arms for pushing two of the side tabs toward each other to form the inside portion of the box end and to place glue thereon, other arms movable in a plane at right angles to the lirst arms to push another box tab over the top of the first two tabs, and means to compress all or' the tabs for securing them in contact with each other.

8. In a box gluing machine the combination with a pair of laterally adjustable supports of a pair of arms adjustable with said supports and movable laterally to push a pair of box end tabs toward each other, rollers for supplying said arms with glue whereby the tabs are glued at the same time, a pair of adjustable arms for pushing a bottom tab over the top of the other two tabs when the gluing` roller arms are retracted, and means to'raise the supports to press the tabs together to form the complete box.

9. A box gluing machine comprising a pair of supports, a pair of arms carrying gluing rollers movable toward and away from each other, means to supply said rollers with glue so that as two of the box tabs are pushed down upon said supports they will be supplied with glue at the same time, swinging arms for pushing a bottom tab over the top of the other two tabs, means to lift said supports to press all of the tabs tightly together, and a foot pedal for carrying out the complete cycle of operations.

In testimony whereof I have hereunto set my hand this 17 th day of May, A. D. 1922.

RAOUL J. GRUENBERG. 

